An issue in AsyncSSH before 2.14.1 allows attackers to control the extension info message (RFC 8308) via a man-in-the-middle attack, aka a Rogue Extension Negotiation.
Weakness
The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Asyncssh | Asyncssh_project | * | 2.14.1 (excluding) |
| Python-asyncssh | Ubuntu | bionic | * |
| Python-asyncssh | Ubuntu | esm-apps/bionic | * |
| Python-asyncssh | Ubuntu | esm-apps/focal | * |
| Python-asyncssh | Ubuntu | esm-apps/jammy | * |
| Python-asyncssh | Ubuntu | esm-apps/noble | * |
| Python-asyncssh | Ubuntu | esm-apps/xenial | * |
| Python-asyncssh | Ubuntu | focal | * |
| Python-asyncssh | Ubuntu | jammy | * |
| Python-asyncssh | Ubuntu | lunar | * |
| Python-asyncssh | Ubuntu | mantic | * |
| Python-asyncssh | Ubuntu | noble | * |
| Python-asyncssh | Ubuntu | oracular | * |
| Python-asyncssh | Ubuntu | trusty | * |
| Python-asyncssh | Ubuntu | upstream | * |
| Python-asyncssh | Ubuntu | xenial | * |
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/111.html
- https://cwe.mitre.org/data/definitions/141.html
- https://cwe.mitre.org/data/definitions/142.html
- https://cwe.mitre.org/data/definitions/148.html
- https://cwe.mitre.org/data/definitions/218.html
- https://cwe.mitre.org/data/definitions/384.html
- https://cwe.mitre.org/data/definitions/385.html
- https://cwe.mitre.org/data/definitions/386.html
- https://cwe.mitre.org/data/definitions/387.html
- https://cwe.mitre.org/data/definitions/388.html
- https://cwe.mitre.org/data/definitions/665.html
- https://cwe.mitre.org/data/definitions/701.html
References
- http://packetstormsecurity.com/files/176280/Terrapin-SSH-Connection-Weakening.html
- https://github.com/advisories/GHSA-cfc2-wr2v-gxm5
- https://github.com/ronf/asyncssh/blob/develop/docs/changes.rst
- https://github.com/ronf/asyncssh/security/advisories/GHSA-cfc2-wr2v-gxm5
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ME34ROZWMDK5KLMZKTSA422XVJZ7IMTE/
- https://security.netapp.com/advisory/ntap-20231222-0001/
- https://www.terrapin-attack.com
- http://packetstormsecurity.com/files/176280/Terrapin-SSH-Connection-Weakening.html
- https://github.com/advisories/GHSA-cfc2-wr2v-gxm5
- https://github.com/ronf/asyncssh/blob/develop/docs/changes.rst
- https://github.com/ronf/asyncssh/security/advisories/GHSA-cfc2-wr2v-gxm5
- https://lists.debian.org/debian-lts-announce/2024/09/msg00042.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ME34ROZWMDK5KLMZKTSA422XVJZ7IMTE/
- https://security.netapp.com/advisory/ntap-20231222-0001/
- https://www.terrapin-attack.com